上海长江大桥主航道斜拉桥索塔钢锚箱设计  

The pylons steel anchorage box design of the main navigation span of the Shanghai Yangtze River Bridge

作　　者：蒋彦征[1] 

机构地区：[1]上海市政工程设计研究总院(集团)有限公司,上海200092

出　　处：《上海公路》2012年第3期24-26,13,共3页Shanghai Highways

摘　　要：上海长江大桥主航道桥为双塔双索面斜拉桥,主梁为分离式钢箱梁,主塔采用人字形塔。主跨730 m,居世界已建成同类桥梁第五位。超大跨径斜拉桥的索塔锚固形式主要有钢锚箱和钢锚梁两种,长江大桥采用了在空心塔柱内壁设置钢锚箱的索塔锚固方式,介绍了长江大桥索塔钢锚箱的设计,经有限元计算表明:结构设计满足规范要求,The structure of the main navigation span of the Shanghai Yangtze River Bridge is a cable-stayed bridge with a X-shaped pylons and the separated double-box steel girder.The main span of the bridge is 730 meters which is the fifth length in the same kind bridges in the world.Large span cable-stayed bridge pylon anchorage usually adopts steel anchor boxes and steel anchor beam structure, the Yangtze River Bridge with steel anchor boxes set inside concrete hollow pylon wall anchorage was introducted in this paper. The structural design was proved with finite element analysis to meet regulations and rules requirements.

关 键 词：斜拉桥 索塔锚固 钢锚箱 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]